TWI675985B - Solar testing device - Google Patents

Abstract

The invention refers to a solar test device (11) for testing a solar module (6). The solar test device (11) includes a test area (12) for a solar module (6) to be tested; a light-emitting area (16) includes a configuration opposed to the test area (12), and a pitch ( P) An array of LED modules (17, 17A). Furthermore, the solar test device (11) includes a side wall lens (21) extending in a direction from the light emitting area (16) to the test area (12). Guides (26) are provided, each guide having an abutting surface (27) for supporting the solar module (6), whereby the abutting surfaces (27) of the guides (26) lie in the In the plane (A) of the test area (12).

Description

Solar test device

The present invention refers to a solar test device, also known as a solar simulator or flasher, for testing a solar cell or solar module according to the preamble of the first patent application.

The solar module is composed of components of electrically connected solar cells. Used to test these solar cells or modules, the active surface is ignited, and the output is compared to individual rated (target) values.

US 2013/0328587 A1 shows a solar test device for testing solar cells or solar modules, including a test area for at least one solar cell or solar module to be tested; a light-emitting area, which includes an array of LED modules, is configured It is opposite to the test area and is arranged in a pitch with each other; and a side wall lens extends from the light emitting area to the test area in the direction. The solar cell or the solar module is placed on a test plane glass defining the test area with its active surface.

To provide useful and reliable solar modules in this market, the test must be of a high standard. According to US 2013/0328587 A1, obtaining homogeneous lighting of such solar modules is particularly difficult and laborious.

It is an object of the present invention to provide a solar test device that does not have these aforementioned disadvantages and especially has a higher test quality.

This objective is achieved by the features of the independent item of the patent application scope. Advantageous further embodiments are shown in the drawings and in the appended items of the patent application scope.

According to the present invention, a ratio between a distance between the light emitting area and the test interval and a pitch of the LED modules is in a range of 1.5 to 3.5. With this, perfect lighting is guaranteed. More preferably, the ratio lies in the range of 2.3 to 2.7. Thereby, the uniform and uniform illumination of the solar cell or the solar module is further improved.

Preferably, the side wall lenses are inclined against the light emitting area, so that the inclination of the side wall lenses is in the opposite direction. In other words, the side wall lenses are opened relative to each other by the light emitting regions in one direction. Thereby, the light provided by the LED modules, especially the LED modules configured adjacent to the side wall lenses, will be guided to the test area in a better way. In this way, the power required for the LED modules adjacent to the side wall lenses is reduced, and only one LED module can be used in the entire solar test device. This reduces the cost and complexity of the solar test device.

More preferably, the side wall lenses are inclined against the light emitting area in an angle range of 91 ° to 95 °, preferably 92 ° to 94 °, so that the lighting of the test area is further improved.

Preferably, the side wall lenses are pivoted about a pivot axis or a rotation axis. With this, a simple structure of the solar test device is possible. Preferably, The pivot or rotation axis is arranged at a distance of one and a half of the light emitting area and the test interval.

Preferably, the distance between the center of the LED module adjacent to the side wall lenses and the individual side wall lenses or the shaft is between 24% and 40% of the pitch between the LED modules, preferably Tied in the range between 28% and 36%, so that the best lighting is guaranteed.

Preferably, the distance between the light emitting area and the test interval is between 300 mm and 500 mm. Thereby, sufficient lighting can be guaranteed by the conventional LED module having a long life. More preferably, the distance is between 350 mm and 450 mm, so that LED modules with lower power consumption can be used.

Preferably, the pitch between the LED modules is between 148 mm and 168 mm, so that the better lighting is guaranteed by the traditional LED modules with a long life. More preferably, the pitch is between 153 mm and 163 mm, so that LED modules with lower power consumption can be used.

Preferably, guides are provided such that each guide has an abutting surface for supporting the solar cell or solar module, whereby the abutting surfaces of the guides are in the plane of the test area. This solar test device has a simple structure that guarantees optimized lighting of the solar cells or solar modules that must be tested. Furthermore, this solar test device can be produced at low cost.

Preferably, each guide has a reflective surface or a reflective surface portion facing the light emitting area, and forms an angle with the light emitting area. The result of this reflective surface or part of the reflective surface is less obscured, thus improving the uniform and uniform illumination of the solar cell or solar module that must be tested.

In a preferred embodiment, each of the guides having a triangular cross-section is provided with a reflective surface or a reflective surface portion that forms an angled region that is inclined to the light emitting region. The angular region can also be defined as the region of the longest side of the triangle (such as the hypotenuse of a right-angled triangle).

Preferably, the angles of the reflective surface or part of the reflective surface to the light emitting area or to the abutting surface of the individual guide are equal to or lower than 45 °. Thereby, the uniform and uniform illumination of the solar cell or the solar module is further improved. More preferably, the aforementioned angle is lower than 25 °, so that the lighting of the solar cell or the solar module is further improved.

Preferably, the guides include rollers, whereby the outer circumferential surfaces of the rollers form abutting surfaces of the individual guides. The test area is defined by a plane tangentially adjacent to the circumferential surfaces of the rollers, and is parallel to the light emitting area. These guides are preferred, especially when the area to be tested extends to the outer edge of the solar cell or the solar module, because the rollers provide less than the adjoining surfaces that extend linearly along the individual edges Cover.

Preferably, the protruding portion extends from abutting surfaces of the guides for guiding the solar cell or the solar module therebetween. The protruding portions guide the solar cell or the solar module on the test area at least in a lateral direction of the solar test device, and ensure the testing of the solar cell or the solar module in a reliable manner.

6‧‧‧Solar Module

11‧‧‧Solar Test Device

12‧‧‧test area

16‧‧‧light-emitting area

17, 17A‧‧‧LED Module

21‧‧‧ sidewall lenses

22‧‧‧ shaft

26‧‧‧Guide

27‧‧‧ abutting surface

28‧‧‧ reflective surface

29‧‧‧ highlight

31‧‧‧Solar test device

46‧‧‧Guide

47‧‧‧ abutting surface

48‧‧‧ reflective surface

51‧‧‧roller

52‧‧‧ outer circumferential surface

59‧‧‧ prominence

61‧‧‧solar test device

62‧‧‧Test Area

66‧‧‧light-emitting area

67, 67a‧‧‧LED Module

71‧‧‧ sidewall lens

76‧‧‧Guide

78‧‧‧ reflective surface

A‧‧‧Test Area Plan

B‧‧‧17A and 21 or 67A and 71

H‧‧‧16 and 12 or 76 and 62

h‧‧‧ half distance from H

P‧‧‧17A and 17 or 67A and 67 pitch

Further embodiments of the invention are indicated in the drawings and in the appended claims to the scope of the patent applications. A list of reference numbers forms part of the disclosure. The invention will now be explained in detail with respect to these drawings. In the drawings: FIG. 1 is a first embodiment of a solar test device according to the present invention in a plan view; FIG. 2 is a solar test device of FIG. 1 in a plan view; FIG. 3 is a solar test device in a cross-sectional view taken along the line III-III in FIG. 2; FIG. 4 is a second embodiment of a solar test device according to the present invention in a perspective view; and FIG. 5 is a view according to the present invention 4 is a detailed view of a solar testing device; and FIG. 6 is a third embodiment of a solar testing device according to the present invention in a sectional view.

The invention will be described with reference to exemplary embodiments and is not limited to particular interconnectors, devices, uses or methods, except as defined in the scope of the attached application patent. Embodiments of the invention can be used with various methods and systems. It will be apparent to those skilled in the art that the present invention can be practiced in various ways within the scope of such patent applications. All the features shown in the drawings can be applied to the present invention with necessary changes in details, as described in the scope of the patent applications and the description of the scope of the patent applications.

As used herein, the indefinite article ("a", "an") indicates the existence of at least one of the referenced items, and the word 'plurality' or 'majority' indicates More than one exists.

In these drawings, only parts which are essentially used in the present invention are shown in outline for better understanding of the present invention.

The solar test device 11 of the present invention for testing a solar cell or solar module 6 shown in FIGS. 1 to 3 includes a test area 12 for at least one solar cell or solar module 6 to be tested, and an LED including an array. Module The light emitting regions 16 of 17 and 17A, the LED modules 17 and 17A are arranged opposite to the test region 12 and are arranged in the pitch P with each other. Furthermore, the solar test device 11 includes side wall lenses 21 extending in a direction from the edge of the light emitting area 16 to the test area 12, whereby the side wall lenses 21 are opened to each other in one direction.

Guides 26 are provided, each having an abutment surface 27 for supporting the solar cell or solar module 6. The abutment surfaces 27 of the guides 26 lie in the plane A of the test area 12. The plane A of the test area 12 extends parallel to the plane of the light emitting area 16.

Each of the guides 26 has a triangular cross section, and is provided with a reflective surface 28 or a reflective surface portion inclined to the light emitting region 16 at an angle α lower than 45 °. The reflective surface 28 corresponds to the surface of the longest side of the triangular cross section. The reflective surface 28 is an inclined angular region that is inclined relative to the abutting surface 27 of the individual guide 26.

The protruding portion 29 extends from the abutment surface 27 of the guide members 26 for guiding the solar cell or the solar module 6 therebetween.

The ratio between the distance H between the light emitting area 16 and the test area 12 and the pitch P between the LED modules 17 and 17A is in the range of 1.5 to 3.5, preferably in the range of 2.3 to 2.7.

The center of the LED module 17A adjacent to the side wall lenses 21 and the distance B between the individual side wall lenses 21 are in a range between 24% and 40%, preferably in the LED modules 17, 17A. The pitch P is between 28% and 36%. The pitch P between the LED modules 17, 17A is between 148 mm and 168 mm, preferably between 153 mm and 163 mm.

All four side wall lenses 21 are arranged angularly with respect to the light emitting area 16. The angle β between the plane provided by the light emitting area 16 and the side wall lenses 21 is in the range of 91 ° to 95 °.

The inclination of the facing side wall lens 21 is in the opposite direction. Therefore, the distance between the side wall lenses 21 adjacent to the test area 12 is greater than the distance between the side wall lenses 21 adjacent to the light emitting area 16.

The side wall lenses 21 are shown as pivoting about a pivot axis or a pivot axis 22. The pivot axis or rotation axis 22 is disposed at a distance h from the light emitting area 16, and the distance h corresponds to half the distance H between the light emitting area 16 and the test area 12. The distance H between the light emitting area 16 and the test area 12 is between 300 mm and 500 mm, preferably between 350 mm and 450 mm.

The distance B between the center of the LED module 17A adjacent to the side wall lenses 21 and the rotation shaft 22 of the individual side wall lenses 21 is in the range of 24% to 40% of the pitch P between the LED modules 17, 17A. range.

In another alternative embodiment, the side wall lenses 21 are pivotable about a pivot axis or a rotation axis 22, and the guide members 26 are movable along the plane A of the test area 12. This solar test device is adjustable, and solar cells or solar modules 6 having different sizes, such as widths, can be tested with the same solar test device.

After positioning the solar cell or solar module 6 on the solar test device 11, a closed box is formed. Therefore, when the solar cell or solar module 6 is tested, there is no incident of ambient light to affect the test results.

In the embodiment of the solar test device 31 of the present invention shown in FIGS. 4 and 5, the guides 46 include rollers 51, and thus—in this drawing, at the upper part—the outer circumference of the rollers 51 The surface 52 forms an abutting surface 47. The test area plane A is tangent to the rollers 51 and runs parallel to the light emitting area (not shown here).

The guide 46 has a reflective surface 48 facing the light emitting area and forms an angle with the light emitting area. The angle α of the reflective surface 48 to the light-emitting area is equal to or lower than 45 °, and preferably lower than 25 °, so that the angle α has a relationship with the reflection The angle between the surface 48 and the adjacent surface 47 is the same.

In this embodiment, the protruding portion 59 is made of a single-flow continuous casting profile, such as an aluminum single-flow continuous casting profile.

In the embodiment of the solar test device 61 of the present invention shown in FIG. 6, the guides 76 have a generally rectangular cross section, and thus are cut at the edges of the rectangular cross section. The inclined portion of the result forms the reflective surface or the reflective surface portion 78 of the guide 76, which is inclined relative to the light emitting area 66.

Claims (5)

A solar test device (11; 31; 61) for testing a solar cell or a solar module (6), comprising a test area (12; 62) for at least one solar cell or solar module (6) to be tested ; The light emitting area (16; 66), which is arranged opposite to the test area (12; 62), includes an array of LED modules (17, 17A; 67, 67A) arranged at a pitch (P) to each other; and a side lens (21; 71) extending in the direction from the light-emitting area (16; 66) to the test area (12; 62), characterized by the light-emitting area (16; 66) and the test area (12; 62) The ratio between the distance (H) between the LED modules (17, 17A; 67, 67A) is in the range of 1.5 to 3.5, preferably in the range of 2.3 to 2.7; Wherein, the side wall lenses (21; 71) are inclined with respect to the light emitting area (16; 66), especially at an angle (β) of 91 ° to 95 °, preferably 92 ° to 94 °. The inclination angle of the side wall lens (21; 71) is in the opposite direction. For example, the solar test device under the scope of patent application, wherein the side wall lenses (21) are pivoted about a pivot axis or a pivot axis (22), and are preferably arranged in a position corresponding to the light emitting area (16) and the test area. (12) The distance (h) is half of the distance (H). For example, the solar test device under the scope of patent application No. 1 or 2 includes the center of the LED module (17A; 37A) adjacent to the side lens (21; 71) and the rotation axis (22) of the lens (21; 71). The distance (B) projected into the light-emitting area (16; 66) is in a range between 24% and 40% of the pitch (P) between the LED modules (17, 17A; 67, 67A), It is preferably in a range between 28% and 36%. For example, the solar test device under the scope of patent application No. 1 or 2, wherein the distance (H) between the light emitting area (16) and the test area (12) is between 300 mm and 500 mm, preferably 350 mm. Up to 450 mm. For example, the solar test device under the scope of patent application No. 1 or 2, wherein the pitch (P) between the LED modules (17, 17A; 67, 67A) is between 148 mm and 168 mm, preferably between 153 mm to 163 mm.